US 11,890,644 B2
Ultrasonic devices including acoustically matched regions therein
Justin Rorke Buckland, Cambridge (GB)
Assigned to Sensus Spectrum, LLC, Morrisville, NC (US)
Filed by Sensus Spectrum, LLC, Morrisville, NC (US)
Filed on Nov. 25, 2020, as Appl. No. 17/104,371.
Application 17/104,371 is a division of application No. 15/889,479, filed on Feb. 6, 2018, granted, now 10,850,308.
Claims priority of provisional application 62/463,375, filed on Feb. 24, 2017.
Prior Publication US 2021/0078041 A1, Mar. 18, 2021
Int. Cl. B06B 1/06 (2006.01); G01N 29/28 (2006.01); G01N 29/24 (2006.01); G10K 11/02 (2006.01); H10N 30/88 (2023.01); H10N 30/853 (2023.01)
CPC B06B 1/067 (2013.01) [G01N 29/245 (2013.01); G01N 29/28 (2013.01); G10K 11/02 (2013.01); H10N 30/8554 (2023.02); H10N 30/883 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An ultrasonic device, comprising:
a transducer having a piezoelectric element therein;
a first acoustic matching layer comprising polyethersulfone (PES), on the piezoelectric element; and
a polymer protective layer on said first acoustic matching layer.